1. Advance Communication Engineering (ACE) Centre of Excellence, Faculty of Electronic Engineering Technology, Universiti Malaysia Perlis, Kangar, Perlis, Malaysia
2. Space Science Centre, Climate Change Institute, Universiti Kebangsaan Malaysia (UKM), Bangi, Malaysia
3. Department of Electrical, Electronics and System Engineering, Faculty of Electric and Built Environment, Universiti Kebangsaan Malaysia (UKM), Bangi, Selangor, Malaysia
4. Department of Electrical and Computer Engineering, Faculty of Engineering, King Mongkut’s University of Technology North Bangkok (KMUTNB), Wongsawang, Bangsue, Bangkok, Thailand